Genuine vs Aftermarket Car Parts: What You Need to Know
Genuine, OEM and aftermarket parts explained — and when each one makes sense.
When your car needs a part, you will usually have three choices.
Genuine parts
Supplied in the manufacturer's packaging. Exact fit, highest price.
OEM-quality parts
Made by the same suppliers or to the same specification, without the manufacturer branding. Usually the best value.
Aftermarket parts
Made by other companies. Quality varies widely — from excellent performance parts to poor copies.
Our advice
- For safety-critical parts (brakes, steering), choose genuine or reputable OEM
- For service items, OEM-quality is usually ideal
- For upgrades, choose proven performance brands
DMS matches parts by registration. Browse parts or see our spare parts service.
